Benchmark 3 Review

$x\ =\ 4$

$x=\frac{9}{4}$

$x=-1$

$x=-\frac{9}{4}$

x + 4y = 1

-x + y = 1

-x + 4y = 4

x + 4y = 4

(48 - 13)(48 + 13)

(48 - 13)²

(48 + 13)²

(48 - 13)(48 - 13)

9

20

-9

16

 $x\ <\ -\frac{1}{2}$  

 $x<-2$  

 $x>-2$  

 $x>-\frac{1}{2}$  

$f\left(x\right)=x\left(2.10\ +\ 12\right)$

$f\left(x\right)=2.10x+60x$

$f\left(x\right)=5\left(2.10x\ +\ 12\right)$

$f\left(x\right)=5\left(2.10\ +\ 12x\right)$

$y>-2x-4$

$y\ge-2x-4$

$y<-2x-4$

$y\le-2x\ -\ 4$

Both plans represent exponential functions

His plan represents a linear function, while her plan represents an exponential function

Both plans represent linear functions

His plan represents an exponential function, while her plan represents a linear function

 $\left(16x^2-16x+64\right)square\ units$  

 $\left(16x^2+16x\ -\ 64\right)\ square\ units$  

 $\left(16x^{2\ }-\ 64\right)\ square\ units$  

 $\left(16x^2+64\right)\ square\ units$  

Both the annual base salary and the percent yearly raise are higher for Job 1 than for Job 2

Both the annual base salary and the percent yearly raise are higher for Job 2 than for Job 1

While the annual base salary of Job 1 is higher than Job 2, the percent yearly raise is higher for Job 2.

While the annual base salary of Job 2 is higher than Job 1, the percent yearly raise is higher for Job 1.

x=4 and x=-4

x = 4 only

x = -6 and x = -1

x = -4 only

75 protein bars and 50 PowerAde

50 protein bars and 75 PowerAde

45 protein bars and 80 PowerAde

65 protein bars and 55 PowerAde

60 protein bars and 60 PowerAde

79

80

82

85

$7x+5$ ft.

$14x+10$ ft.

$12x^2+15x\ +6$ ft.

$14x\ +\ 5$ ft.

.5 secs

1.25 secs

4 secs

8 secs.

 $x=\sqrt{A+4}$  

 $x=\sqrt{A}-2$  

 $x=\sqrt{A}+2$  

 $x=\sqrt{A-4}$  

the factors are (2x+12) and (x-1) and the zeros are x= -6 and  x=1

the factors are (2x-1)(x-12) and the zeros are x=1/2 and x=12

the factors are (x+12) and (2x-1) and the zeros are x=-12 and x=1/2

the factors are (2x-12) and (x+1) and the zeros are x=6 and x=-1

$10\left(2\right)^2>5,000$

$10\left(2\right)^t<5,000$

$10\ +2t\ <5,000$

$10\ +\ 2t\ >5,000$

the slope of the linear model is 50, and it represents the average decrease in cost per month after the video game is released

the y-intercept of the linear model is 50, and it represents the average decrease in cost per month after the video game is released

the y-intercept of the linear model is 50, and it represents the initial cost of the video game on day 0.

the slope of the linear model is 50, and it represents the initial cost of the video game on day 0.

(1,5)

(-1,-5)

(-4,4)

(4,4)

$y=3x+2$
$y=-\frac{1}{2}x+6$

$y=3x+2$
$y=\frac{1}{2}x+6$

$y=2x+3$
$y=\frac{1}{2}x\ +\ 6$

$y=2x+3$
$y=-\frac{1}{2}x+6$

 $x=3$  

 $x=-3$  

 $x=9$  

 $x=-9$  

$g\left(x\right)=f\left(x+4\right)-2$

$g\left(x\right)=f\left(x-4\right)-2$

$g\left(x\right)=f\left(x+4\right)+2$

$g\left(x\right)=f\left(x-4\right)-2$

$6x+14\ units$

$8x^2+52x+24\ units^2$

$8x^2+48x+12\ units^2$

$48x^2+12x+12\ units^2$

$A\left(t\right)=1.02\left(750\right)^t$

$A\left(t\right)=750-\left(1.02\right)^t$

$A\left(t\right)=750+1.02t$

$A\left(t\right)=750\left(1.02\right)^t$